1/*
2 * This file is part of the WebKit project.
3 *
4 * Copyright (C) 2009 Michelangelo De Simone <micdesim@gmail.com>
5 * Copyright (C) 2010 Google Inc. All rights reserved.
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15 * Library General Public License for more details.
16 *
17 * You should have received a copy of the GNU Library General Public License
18 * along with this library; see the file COPYING.LIB.  If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 * Boston, MA 02110-1301, USA.
21 *
22 */
23
24#include "config.h"
25#include "EmailInputType.h"
26
27#include "HTMLInputElement.h"
28#include "LocalizedStrings.h"
29#include "RegularExpression.h"
30#include <wtf/PassOwnPtr.h>
31
32namespace WebCore {
33
34static const char emailPattern[] =
35    "[a-z0-9!#$%&'*+/=?^_`{|}~.-]+" // local part
36    "@"
37    "[a-z0-9-]+(\\.[a-z0-9-]+)+"; // domain part
38
39static bool isValidEmailAddress(const String& address)
40{
41    int addressLength = address.length();
42    if (!addressLength)
43        return false;
44
45    DEFINE_STATIC_LOCAL(const RegularExpression, regExp, (emailPattern, TextCaseInsensitive));
46
47    int matchLength;
48    int matchOffset = regExp.match(address, 0, &matchLength);
49
50    return !matchOffset && matchLength == addressLength;
51}
52
53PassOwnPtr<InputType> EmailInputType::create(HTMLInputElement* element)
54{
55    return adoptPtr(new EmailInputType(element));
56}
57
58const AtomicString& EmailInputType::formControlType() const
59{
60    return InputTypeNames::email();
61}
62
63bool EmailInputType::typeMismatchFor(const String& value) const
64{
65    if (value.isEmpty())
66        return false;
67    if (!element()->multiple())
68        return !isValidEmailAddress(value);
69    Vector<String> addresses;
70    value.split(',', addresses);
71    for (unsigned i = 0; i < addresses.size(); ++i) {
72        if (!isValidEmailAddress(addresses[i]))
73            return true;
74    }
75    return false;
76}
77
78bool EmailInputType::typeMismatch() const
79{
80    return typeMismatchFor(element()->value());
81}
82
83String EmailInputType::typeMismatchText() const
84{
85    return element()->multiple() ? validationMessageTypeMismatchForMultipleEmailText() : validationMessageTypeMismatchForEmailText();
86}
87
88bool EmailInputType::isEmailField() const
89{
90    return true;
91}
92
93} // namespace WebCore
94